CVE-2026-29955

HIGHNVD 8.88.8
EchelonGraph scoreMEDIUM confidence

“—” beside the score: it is equal to NVD's CVSS score.

Score 8.8 from GitHub Security Advisory (severity: HIGH) published 2026-04-13. NVD baseline CVSS 8.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: EPSS, GitHub Security Advisory, NVD CVSS v3
Elevated
8.8EG
EchelonGraph verdictPlan mitigationRemediate within your standard update timelines at low or medium mission impact and sooner than that at high (the SSVC decision on this page).
  • CISA's Vulnrichment rates exploitation as PoC; EchelonGraph holds no exploit-code reference for it
CISA-KEV: Not listedEPSS PROB: 2.9%CVSS: 8.8Exploit: No code on recordExposed services: Not assessed

No fix is confirmed yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for the fix.

The /registercrd endpoint in KubePlus 4.14 in the kubeconfiggenerator component is vulnerable to command injection. The component uses subprocess.Popen() with shell=True parameter to execute shell commands, and the user-supplied chartName parameter is directly concatenated into the command string without any sanitization or validation. An attacker can inject arbitrary shell commands by crafting a malicious chartName parameter value.

CVSS v3
8.8
EG Score
8.8HIGHmedium confidence
EG Risk
56
EG Risk 56/100

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed (value × EchelonGraph’s weight)
Severity88% × 45%
The EG Score, 8.8 of 10.
Exploitation40% × 40%
EchelonGraph's fixed weight for EG-KEV Tier 3 (Elevated): a constant, not a probability.
Automatability0% × 15%
CISA's SSVC Automatable value: no (Vulnrichment).
SSVC (CISA's decision table, applied by EchelonGraph): Track at low, Track* at medium and Attend at high mission impact.
Exploitation public PoC (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE.
Action: No fix is confirmed yet. Restrict network exposure of the affected system within your standard update timelines at low or medium mission impact and sooner than that at high, and watch for a fix.
EPSS PROB
2.9%
EPSS %ILE
86th
KEV
Not listed

SSVC (CISA's decision table, applied by EchelonGraph)Track at low, Track* at medium and Attend at high mission impact.

No fix is confirmed yet. Restrict network exposure of the affected system within your standard update timelines at low or medium mission impact and sooner than that at high, and watch for a fix.

Exploitation public PoC (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE. Mission impact is CISA's Mission & Well-being decision point, and only you can judge it. CISA's table makes it high when Mission Prevalence is Essential — the vulnerable component "directly provides capabilities that constitute at least one MEF for at least one entity" (MEF: mission essential function) — or when Public Well-Being Impact is Irreversible: "multiple fatalities are likely", the cyber-physical system "is likely lost or destroyed", "extreme or serious externalities" are imposed on other parties, or social systems such as elections or the financial grid "are destabilized and potentially collapse". CISA's decision table

BOD 26-04 (CISA's remediation timeline, Table 1)14 days if the affected system is publicly exposed; Fix on system upgrade if it is not.

In CISA KEV no (CISA's KEV catalog) · Automatable no (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). Whether your system is publicly exposed is yours to answer. BOD 26-04 binds US Federal Civilian Executive Branch agencies; for anyone else it is CISA's published timeline, a reference rather than an obligation. The directive · how EchelonGraph applies it

Published

April 13, 2026

Last Modified

May 1, 2026

Advisory Details (2)

Auto-updated May 1, 2026
No fix on record yet.
Web page

CVE-2026-29955/README.md at main · b0b0haha/CVE-2026-29955 · GitHub

https://github.com/b0b0haha/CVE-2026-29955/blob/main/README.md
Web page

CVE-2026-29955: KubePlus KubeconfigGenerator Command Injection Vulnerability · GitHub

https://gist.github.com/b0b0haha/f011fdd69adc3ae272a4e3b99af90163

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 11× in last 7d / 25× in last 30d)

Each row is a time one of our pipelines fetched, updated or re-scored this CVE. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. An arrow marks a change the record states ("CVSS v3 → 9.1"); EPSS and GHSA rows show the values recorded at that time, not what changed (EPSS values are rounded; hover one for the exact figures). Most recent first.

Showing the most recent 95 of 224 refreshes on record for this CVE.

A repeat, a row identical to one the same pipeline wrote less than 10 seconds earlier, is not a separate refresh and is not counted. 5 repeat rows among the latest 100 are merged into the row they repeat. The 129 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-10-16 16:41 UTCEPSS rescoreEPSS 2.9% · 86th percentile
  2. 2026-10-15 16:31 UTCEPSS rescoreEPSS 2.9% · 86th percentile
  3. 2026-10-14 16:32 UTCEPSS rescoreEPSS 2.9% · 86th percentile
  4. 2026-10-13 16:34 UTCEPSS rescoreEPSS 2.9% · 86th percentile
  5. 2026-10-12 16:34 UTCEPSS rescoreEPSS 2.9% · 86th percentile
  6. 2026-10-12 16:16 UTCEG score recompute
  7. 2026-10-11 19:58 UTCEG score recompute
  8. 2026-10-11 17:11 UTCEG score recompute
  9. 2026-10-11 14:40 UTCEG score recompute
  10. 2026-10-11 13:48 UTCEPSS rescoreEPSS 2.9% · 86th percentile
  11. 2026-10-10 20:00 UTCEPSS rescoreEPSS 2.9% · 86th percentile
  12. 2026-10-09 20:07 UTCEPSS rescoreEPSS 2.9% · 86th percentile
  13. 2026-10-08 17:12 UTCEPSS rescoreEPSS 2.9% · 86th percentile
  14. 2026-10-07 23:47 UTCEPSS rescoreEPSS 2.9% · 86th percentile
  15. 2026-10-06 15:17 UTCEPSS rescoreEPSS 2.9% · 86th percentile
  16. 2026-10-05 17:42 UTCEPSS rescoreEPSS 2.9% · 86th percentile
  17. 2026-10-03 14:25 UTCEPSS rescoreEPSS 2.9% · 86th percentile
  18. 2026-10-01 19:49 UTCEPSS rescoreEPSS 2.9% · 86th percentile
  19. 2026-09-30 15:03 UTCEPSS rescoreEPSS 2.9% · 86th percentile
  20. 2026-09-28 13:51 UTCEPSS rescoreEPSS 2.9% · 86th percentile
  21. 2026-09-26 15:58 UTCEPSS rescoreEPSS 2.9% · 86th percentile
  22. 2026-09-26 00:26 UTCEPSS rescoreEPSS 2.9% · 86th percentile
  23. 2026-09-20 20:15 UTCEPSS rescoreEPSS 2.2% · 81st percentile
  24. 2026-09-18 19:27 UTCEPSS rescoreEPSS 2.2% · 81st percentile
  25. 2026-09-17 19:30 UTCEPSS rescoreEPSS 2.2% · 81st percentile
Show 70 more
  1. 2026-09-16 14:08 UTCEPSS rescoreEPSS 2.2% · 81st percentile
  2. 2026-09-16 05:15 UTCEPSS rescoreEPSS 2.2% · 81st percentile
  3. 2026-09-12 15:01 UTCEPSS rescoreEPSS 2.2% · 81st percentile
  4. 2026-09-11 14:52 UTCEPSS rescoreEPSS 2.2% · 81st percentile
  5. 2026-09-10 09:34 UTCEPSS rescoreEPSS 2.2% · 81st percentile
  6. 2026-09-08 22:00 UTCEPSS rescoreEPSS 2.2% · 81st percentile
  7. 2026-09-07 16:01 UTCEPSS rescoreEPSS 2.2% · 81st percentile
  8. 2026-09-06 13:47 UTCEPSS rescoreEPSS 2.2% · 81st percentile
  9. 2026-09-04 05:06 UTCEPSS rescoreEPSS 2.2% · 81st percentile
  10. 2026-09-02 14:11 UTCEPSS rescoreEPSS 2.2% · 81st percentile
  11. 2026-09-01 13:53 UTCEPSS rescoreEPSS 2.2% · 81st percentile
  12. 2026-09-01 04:39 UTCEPSS rescoreEPSS 2.2% · 81st percentile
  13. 2026-08-30 19:17 UTCEPSS rescoreEPSS 2.2% · 81st percentile
  14. 2026-08-30 01:22 UTCEPSS rescoreEPSS 2.2% · 80th percentile
  15. 2026-08-28 21:41 UTCEPSS rescoreEPSS 2.2% · 80th percentile
  16. 2026-08-27 14:25 UTCEPSS rescoreEPSS 2.2% · 81st percentile
  17. 2026-08-26 14:46 UTCEPSS rescoreEPSS 2.2% · 81st percentile
  18. 2026-08-25 13:49 UTCEPSS rescoreEPSS 2.2% · 81st percentile
  19. 2026-08-24 14:17 UTCEPSS rescoreEPSS 2.2% · 80th percentile
  20. 2026-08-23 00:19 UTCEPSS rescoreEPSS 2.2% · 81st percentile
  21. 2026-08-21 23:49 UTCEPSS rescoreEPSS 2.2% · 80th percentile
  22. 2026-08-20 22:55 UTCEPSS rescoreEPSS 2.2% · 80th percentile
  23. 2026-08-19 17:03 UTCEPSS rescoreEPSS 2.2% · 80th percentile
  24. 2026-08-18 13:48 UTCEPSS rescoreEPSS 2.2% · 80th percentile
  25. 2026-08-17 13:47 UTCEPSS rescoreEPSS 2.2% · 80th percentile
  26. 2026-08-16 14:56 UTCEPSS rescoreEPSS 2.2% · 80th percentile
  27. 2026-08-16 06:53 UTCEG score recompute
  28. 2026-08-16 06:53 UTCGHSA enrichmentGHSA-2m2q-qgx4-j4mp · GitHub severity HIGH · GitHub CVSS 8.8
  29. 2026-08-16 02:14 UTCEPSS rescoreEPSS 2.2% · 80th percentile
  30. 2026-08-15 01:30 UTCEPSS rescoreEPSS 2.2% · 80th percentile
  31. 2026-08-14 18:16 UTCGHSA enrichmentGHSA-2m2q-qgx4-j4mp · GitHub severity HIGH · GitHub CVSS 8.8
  32. 2026-08-14 04:55 UTCEG score recompute
  33. 2026-08-14 04:55 UTCGHSA enrichmentGHSA-2m2q-qgx4-j4mp · GitHub severity HIGH · GitHub CVSS 8.8
  34. 2026-08-13 22:00 UTCEPSS rescoreEPSS 2.2% · 80th percentile
  35. 2026-08-13 09:14 UTCGHSA enrichmentGHSA-2m2q-qgx4-j4mp · GitHub severity HIGH · GitHub CVSS 8.8
  36. 2026-08-12 19:09 UTCEG score recompute
  37. 2026-08-12 19:09 UTCGHSA enrichmentGHSA-2m2q-qgx4-j4mp · GitHub severity HIGH · GitHub CVSS 8.8
  38. 2026-08-12 13:50 UTCEPSS rescoreEPSS 2.2% · 80th percentile
  39. 2026-08-11 19:16 UTCEG score recompute
  40. 2026-08-11 19:16 UTCGHSA enrichmentGHSA-2m2q-qgx4-j4mp · GitHub severity HIGH · GitHub CVSS 8.8
  41. 2026-08-11 13:42 UTCEPSS rescoreEPSS 2.2% · 80th percentile
  42. 2026-08-11 02:51 UTCEG score recompute
  43. 2026-08-11 02:51 UTCGHSA enrichmentGHSA-2m2q-qgx4-j4mp · GitHub severity HIGH · GitHub CVSS 8.8
  44. 2026-08-11 00:00 UTCEPSS rescoreEPSS 2.2% · 80th percentile
  45. 2026-08-10 04:09 UTCGHSA enrichmentGHSA-2m2q-qgx4-j4mp · GitHub severity HIGH · GitHub CVSS 8.8
  46. 2026-08-09 16:13 UTCEG score recompute
  47. 2026-08-09 16:13 UTCGHSA enrichmentGHSA-2m2q-qgx4-j4mp · GitHub severity HIGH · GitHub CVSS 8.8
  48. 2026-08-09 13:46 UTCEPSS rescoreEPSS 2.2% · 80th percentile
  49. 2026-08-09 04:18 UTCEG score recompute
  50. 2026-08-09 04:18 UTCGHSA enrichmentGHSA-2m2q-qgx4-j4mp · GitHub severity HIGH · GitHub CVSS 8.8
  51. 2026-08-08 16:37 UTCEPSS rescoreEPSS 2.2% · 80th percentile
  52. 2026-08-08 01:51 UTCEG score recompute
  53. 2026-08-08 01:51 UTCGHSA enrichmentGHSA-2m2q-qgx4-j4mp · GitHub severity HIGH · GitHub CVSS 8.8
  54. 2026-08-07 13:56 UTCEG score recompute
  55. 2026-08-07 13:56 UTCGHSA enrichmentGHSA-2m2q-qgx4-j4mp · GitHub severity HIGH · GitHub CVSS 8.8
  56. 2026-08-06 13:46 UTCEPSS rescoreEPSS 2.2% · 80th percentile
  57. 2026-08-06 12:31 UTCGHSA enrichmentGHSA-2m2q-qgx4-j4mp · GitHub severity HIGH · GitHub CVSS 8.8
  58. 2026-08-05 23:34 UTCEG score recompute
  59. 2026-08-05 23:34 UTCGHSA enrichmentGHSA-2m2q-qgx4-j4mp · GitHub severity HIGH · GitHub CVSS 8.8
  60. 2026-08-05 19:17 UTCEPSS rescoreEPSS 2.2% · 80th percentile
  61. 2026-08-04 15:10 UTCEPSS rescoreEPSS 2.2% · 80th percentile
  62. 2026-08-03 21:48 UTCEG score recompute
  63. 2026-08-03 21:48 UTCGHSA enrichmentGHSA-2m2q-qgx4-j4mp · GitHub severity HIGH · GitHub CVSS 8.8
  64. 2026-08-03 10:36 UTCEPSS rescoreEPSS 2.2% · 80th percentile
  65. 2026-08-03 01:28 UTCGHSA enrichmentGHSA-2m2q-qgx4-j4mp · GitHub severity HIGH · GitHub CVSS 8.8
  66. 2026-08-02 13:33 UTCEG score recompute
  67. 2026-08-02 13:33 UTCGHSA enrichmentGHSA-2m2q-qgx4-j4mp · GitHub severity HIGH · GitHub CVSS 8.8
  68. 2026-08-02 02:26 UTCEPSS rescoreEPSS 2.2% · 80th percentile
  69. 2026-08-01 04:16 UTCEPSS rescoreEPSS 2.2% · 80th percentile
  70. 2026-07-30 16:27 UTCEPSS rescoreEPSS 2.2% · 80th percentile

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Frequently asked(5)

What is CVE-2026-29955?
CVE-2026-29955 is a high-severity vulnerability; its CVE record was published on April 13, 2026. The /registercrd endpoint in KubePlus 4.14 in the kubeconfiggenerator component is vulnerable to command injection. The component uses subprocess.Popen() with shell=True parameter to execute shell commands, and the user-supplied chartName parameter is directly concatenated into the command string…
When was the CVE record for CVE-2026-29955 published?
The CVE record for CVE-2026-29955 was published on April 13, 2026. That is the record's publication date; the vulnerability itself may have been made public earlier. EchelonGraph's copy of the record carries a last-modified date of May 1, 2026; the record at its source may have been updated since.
Is CVE-2026-29955 actively exploited?
CVE-2026-29955 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 2.9% probability of exploitation in the next 30 days (86th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-29955?
CVE-2026-29955 has a CVSS v3 base score of 8.8 (NVD).
How do I remediate CVE-2026-29955?
No fix for CVE-2026-29955 is confirmed yet. Until one is published, restrict network exposure of the affected system — for example, keep it off the internet or limit it to trusted networks — and watch for a fix.

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